From 6ef768fac9dfe3404d3fdc09909ea203a88f2f38 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Thu, 20 Nov 2014 13:45:31 +0100 Subject: kvm: x86: move ioapic.c and irq_comm.c back to arch/x86/ ia64 does not need them anymore. Ack notifiers become x86-specific too. Suggested-by: Gleb Natapov Reviewed-by: Radim Krcmar Signed-off-by: Paolo Bonzini --- arch/x86/kvm/ioapic.h | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 arch/x86/kvm/ioapic.h (limited to 'arch/x86/kvm/ioapic.h') diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h new file mode 100644 index 000000000000..deac8d509f2a --- /dev/null +++ b/arch/x86/kvm/ioapic.h @@ -0,0 +1,102 @@ +#ifndef __KVM_IO_APIC_H +#define __KVM_IO_APIC_H + +#include + +#include "iodev.h" + +struct kvm; +struct kvm_vcpu; + +#define IOAPIC_NUM_PINS KVM_IOAPIC_NUM_PINS +#define IOAPIC_VERSION_ID 0x11 /* IOAPIC version */ +#define IOAPIC_EDGE_TRIG 0 +#define IOAPIC_LEVEL_TRIG 1 + +#define IOAPIC_DEFAULT_BASE_ADDRESS 0xfec00000 +#define IOAPIC_MEM_LENGTH 0x100 + +/* Direct registers. */ +#define IOAPIC_REG_SELECT 0x00 +#define IOAPIC_REG_WINDOW 0x10 + +/* Indirect registers. */ +#define IOAPIC_REG_APIC_ID 0x00 /* x86 IOAPIC only */ +#define IOAPIC_REG_VERSION 0x01 +#define IOAPIC_REG_ARB_ID 0x02 /* x86 IOAPIC only */ + +/*ioapic delivery mode*/ +#define IOAPIC_FIXED 0x0 +#define IOAPIC_LOWEST_PRIORITY 0x1 +#define IOAPIC_PMI 0x2 +#define IOAPIC_NMI 0x4 +#define IOAPIC_INIT 0x5 +#define IOAPIC_EXTINT 0x7 + +#ifdef CONFIG_X86 +#define RTC_GSI 8 +#else +#define RTC_GSI -1U +#endif + +struct rtc_status { + int pending_eoi; + DECLARE_BITMAP(dest_map, KVM_MAX_VCPUS); +}; + +struct kvm_ioapic { + u64 base_address; + u32 ioregsel; + u32 id; + u32 irr; + u32 pad; + union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS]; + unsigned long irq_states[IOAPIC_NUM_PINS]; + struct kvm_io_device dev; + struct kvm *kvm; + void (*ack_notifier)(void *opaque, int irq); + spinlock_t lock; + DECLARE_BITMAP(handled_vectors, 256); + struct rtc_status rtc_status; + struct delayed_work eoi_inject; + u32 irq_eoi[IOAPIC_NUM_PINS]; +}; + +#ifdef DEBUG +#define ASSERT(x) \ +do { \ + if (!(x)) { \ + printk(KERN_EMERG "assertion failed %s: %d: %s\n", \ + __FILE__, __LINE__, #x); \ + BUG(); \ + } \ +} while (0) +#else +#define ASSERT(x) do { } while (0) +#endif + +static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm) +{ + return kvm->arch.vioapic; +} + +void kvm_rtc_eoi_tracking_restore_one(struct kvm_vcpu *vcpu); +int kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source, + int short_hand, unsigned int dest, int dest_mode); +int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2); +void kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, int vector, + int trigger_mode); +bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector); +int kvm_ioapic_init(struct kvm *kvm); +void kvm_ioapic_destroy(struct kvm *kvm); +int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int irq_source_id, + int level, bool line_status); +void kvm_ioapic_clear_all(struct kvm_ioapic *ioapic, int irq_source_id); +int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src, + struct kvm_lapic_irq *irq, unsigned long *dest_map); +int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state); +int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state); +void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap, + u32 *tmr); + +#endif -- cgit v1.2.3-70-g09d2